Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.

Project Subscriptions

Vendors Products
Mozilla Subscribe
Firefox Subscribe
Thunderbird Subscribe
Advisories
Source ID Title
Debian DLA Debian DLA DLA-4575-1 firefox-esr security update
Debian DLA Debian DLA DLA-4582-1 thunderbird security update
Debian DSA Debian DSA DSA-6254-1 firefox-esr security update
Debian DSA Debian DSA DSA-6267-1 thunderbird security update
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

References
Link Providers
https://access.redhat.com/errata/RHSA-2026:19160 cve-icon
https://access.redhat.com/errata/RHSA-2026:20566 cve-icon
https://access.redhat.com/errata/RHSA-2026:20574 cve-icon
https://access.redhat.com/errata/RHSA-2026:21381 cve-icon
https://access.redhat.com/errata/RHSA-2026:22325 cve-icon
https://access.redhat.com/errata/RHSA-2026:22643 cve-icon
https://access.redhat.com/errata/RHSA-2026:24508 cve-icon
https://access.redhat.com/errata/RHSA-2026:24509 cve-icon
https://access.redhat.com/errata/RHSA-2026:24510 cve-icon
https://access.redhat.com/errata/RHSA-2026:24511 cve-icon
https://access.redhat.com/errata/RHSA-2026:24516 cve-icon
https://access.redhat.com/errata/RHSA-2026:24755 cve-icon
https://access.redhat.com/errata/RHSA-2026:24983 cve-icon
https://access.redhat.com/errata/RHSA-2026:25015 cve-icon
https://access.redhat.com/errata/RHSA-2026:26174 cve-icon
https://access.redhat.com/errata/RHSA-2026:26268 cve-icon
https://access.redhat.com/errata/RHSA-2026:26269 cve-icon
https://access.redhat.com/errata/RHSA-2026:26270 cve-icon
https://access.redhat.com/errata/RHSA-2026:26521 cve-icon
https://access.redhat.com/errata/RHSA-2026:26536 cve-icon
https://access.redhat.com/errata/RHSA-2026:26539 cve-icon
https://access.redhat.com/security/cve/CVE-2026-8092 cve-icon
https://bugzilla.mozilla.org/buglist.cgi?bug_id=1806249%2C2021977%2C2022576%2C2022722%2C2024439%2C2027883%2C2029463%2C2030323%2C2032042%2C2032043%2C2033270%2C2033637%2C2034422%2C2034496%2C2035879%2C2036516 cve-icon cve-icon
https://bugzilla.redhat.com/show_bug.cgi?id=2467708 cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-8092 cve-icon
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-8092.json cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-8092 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-40/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-41/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-41/#CVE-2026-8092 cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-42/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-43/ cve-icon cve-icon
https://www.mozilla.org/security/advisories/mfsa2026-44/ cve-icon cve-icon
History

Mon, 18 May 2026 08:00:00 +0000

Type Values Removed Values Added
Description Memory safety bugs present in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2. Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
Title Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thunderbird 150.0.2 Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2

Mon, 11 May 2026 15:15:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla thunderbird
CPEs cpe:2.3:a:mozilla:firefox:*:*:*:*:-:*:*:*
cpe:2.3:a:mozilla:firefox:*:*:*:*:esr:*:*:*
cpe:2.3:a:mozilla:thunderbird:*:*:*:*:-:*:*:*
Vendors & Products Mozilla thunderbird

Sat, 09 May 2026 00:15:00 +0000


Fri, 08 May 2026 20:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119

Fri, 08 May 2026 14:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-125
CWE-416
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Fri, 08 May 2026 13:00:00 +0000

Type Values Removed Values Added
Description Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, and Firefox ESR 115.35.2. Memory safety bugs present in Thunderbird ESR 140.10.1 and Thunderbird 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, Firefox ESR 115.35.2, Thunderbird 150.0.2, and Thunderbird 140.10.2.
Title Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2 Memory safety bugs fixed in Thunderbird ESR 140.10.2 and Thunderbird 150.0.2
References

Thu, 07 May 2026 15:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-119
CWE-787

Thu, 07 May 2026 15:00:00 +0000

Type Values Removed Values Added
First Time appeared Mozilla
Mozilla firefox
Vendors & Products Mozilla
Mozilla firefox

Thu, 07 May 2026 13:00:00 +0000

Type Values Removed Values Added
Description Memory safety bugs present in Firefox ESR 115.35.1, Firefox ESR 140.10.1 and Firefox 150.0.1. Some of these bugs showed evidence of memory corruption and we presume that with enough effort some of these could have been exploited to run arbitrary code. This vulnerability was fixed in Firefox 150.0.2, Firefox ESR 140.10.2, and Firefox ESR 115.35.2.
Title Memory safety bugs fixed in Firefox ESR 115.35.2, Firefox ESR 140.10.2 and Firefox 150.0.2
References

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: mozilla

Published:

Updated: 2026-07-28T12:04:48.651Z

Reserved: 2026-05-07T12:45:06.414Z

Link: CVE-2026-8092

cve-icon Vulnrichment

Updated: 2026-07-28T12:04:48.651Z

cve-icon NVD

Status : Modified

Published: 2026-05-07T13:16:14.203

Modified: 2026-07-28T13:19:09.323

Link: CVE-2026-8092

cve-icon Redhat

Severity : Important

Publid Date: 2026-05-07T12:45:06Z

Links: CVE-2026-8092 - Bugzilla

cve-icon OpenCVE Enrichment

Updated: 2026-05-18T09:30:22Z

Weaknesses